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1fdc53c385
When a client which started non-p2p migration dies in a bad time, the source libvirtd never clears the migration job and almost nothing can be done with the domain without restarting the daemon. This patch makes use of connection close callbacks and ensures that migration job is properly discarded when the client disconnects.
157 lines
6.4 KiB
C
157 lines
6.4 KiB
C
/*
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* qemu_migration.h: QEMU migration handling
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*
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* Copyright (C) 2006-2011 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef __QEMU_MIGRATION_H__
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# define __QEMU_MIGRATION_H__
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# include "qemu_conf.h"
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# include "qemu_domain.h"
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/* All supported qemu migration flags. */
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# define QEMU_MIGRATION_FLAGS \
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(VIR_MIGRATE_LIVE | \
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VIR_MIGRATE_PEER2PEER | \
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VIR_MIGRATE_TUNNELLED | \
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VIR_MIGRATE_PERSIST_DEST | \
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VIR_MIGRATE_UNDEFINE_SOURCE | \
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VIR_MIGRATE_PAUSED | \
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VIR_MIGRATE_NON_SHARED_DISK | \
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VIR_MIGRATE_NON_SHARED_INC | \
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VIR_MIGRATE_CHANGE_PROTECTION | \
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VIR_MIGRATE_UNSAFE)
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enum qemuMigrationJobPhase {
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QEMU_MIGRATION_PHASE_NONE = 0,
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QEMU_MIGRATION_PHASE_PERFORM2,
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QEMU_MIGRATION_PHASE_BEGIN3,
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QEMU_MIGRATION_PHASE_PERFORM3,
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QEMU_MIGRATION_PHASE_PERFORM3_DONE,
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QEMU_MIGRATION_PHASE_CONFIRM3_CANCELLED,
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QEMU_MIGRATION_PHASE_CONFIRM3,
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QEMU_MIGRATION_PHASE_PREPARE,
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QEMU_MIGRATION_PHASE_FINISH2,
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QEMU_MIGRATION_PHASE_FINISH3,
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QEMU_MIGRATION_PHASE_LAST
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};
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VIR_ENUM_DECL(qemuMigrationJobPhase)
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int qemuMigrationJobStart(struct qemud_driver *driver,
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virDomainObjPtr vm,
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enum qemuDomainAsyncJob job)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
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void qemuMigrationJobSetPhase(struct qemud_driver *driver,
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virDomainObjPtr vm,
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enum qemuMigrationJobPhase phase)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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void qemuMigrationJobStartPhase(struct qemud_driver *driver,
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virDomainObjPtr vm,
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enum qemuMigrationJobPhase phase)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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int qemuMigrationJobContinue(virDomainObjPtr obj)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
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bool qemuMigrationJobIsActive(virDomainObjPtr vm,
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enum qemuDomainAsyncJob job)
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ATTRIBUTE_NONNULL(1);
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int qemuMigrationJobFinish(struct qemud_driver *driver, virDomainObjPtr obj)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
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int qemuMigrationSetOffline(struct qemud_driver *driver,
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virDomainObjPtr vm);
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virDomainObjPtr qemuMigrationCleanup(struct qemud_driver *driver,
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virDomainObjPtr vm,
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virConnectPtr conn);
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char *qemuMigrationBegin(struct qemud_driver *driver,
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virDomainObjPtr vm,
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const char *xmlin,
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const char *dname,
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char **cookieout,
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int *cookieoutlen,
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unsigned long flags);
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int qemuMigrationPrepareTunnel(struct qemud_driver *driver,
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virConnectPtr dconn,
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const char *cookiein,
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int cookieinlen,
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char **cookieout,
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int *cookieoutlen,
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virStreamPtr st,
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const char *dname,
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const char *dom_xml);
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int qemuMigrationPrepareDirect(struct qemud_driver *driver,
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virConnectPtr dconn,
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const char *cookiein,
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int cookieinlen,
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char **cookieout,
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int *cookieoutlen,
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const char *uri_in,
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char **uri_out,
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const char *dname,
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const char *dom_xml);
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int qemuMigrationPerform(struct qemud_driver *driver,
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virConnectPtr conn,
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virDomainObjPtr vm,
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const char *xmlin,
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const char *dconnuri,
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const char *uri,
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const char *cookiein,
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int cookieinlen,
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char **cookieout,
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int *cookieoutlen,
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unsigned long flags,
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const char *dname,
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unsigned long resource,
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bool v3proto);
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virDomainPtr qemuMigrationFinish(struct qemud_driver *driver,
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virConnectPtr dconn,
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virDomainObjPtr vm,
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const char *cookiein,
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int cookieinlen,
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char **cookieout,
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int *cookieoutlen,
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unsigned long flags,
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int retcode,
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bool v3proto);
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int qemuMigrationConfirm(struct qemud_driver *driver,
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virConnectPtr conn,
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virDomainObjPtr vm,
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const char *cookiein,
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int cookieinlen,
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unsigned int flags,
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int retcode);
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int qemuMigrationToFile(struct qemud_driver *driver, virDomainObjPtr vm,
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int fd, off_t offset, const char *path,
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const char *compressor,
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bool bypassSecurityDriver,
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enum qemuDomainAsyncJob asyncJob)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(5)
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ATTRIBUTE_RETURN_CHECK;
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#endif /* __QEMU_MIGRATION_H__ */
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